Gartner Research

Best Practices for Question-and-Answer Identity Verification Methods

Published: 04 June 2007

ID: G00147464

Analyst(s): Ant Allan


Question-and-answer methods are used for online authentication and identity verification prior to password reset. But poorly chosen questions remain a significant weakness.

Table Of Contents
  • Overview
  • Use Cases
    • Online Consumer Authentication
    • Identity Verification for Self-Service Password Reset
    • Caller Verification for Help Desk Password Reset
  • Best Practices
    • Avoid These Questions!
    • Create Good Questions
    • Validate Answers on Registration
    • Use Fuzzy Verification
    • Use Good Numeric Answers for Automated Telephony Systems
    • Use Multiple Questions

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